


Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Partly Cloudy
76°F
24°C
Humidity | 74% |
Wind Speed | S 10 mph |
Barometer | 30.07 in (1017.9 mb) |
Dewpoint | 67°F (19°C) |
Visibility | 10.00 mi |
Heat Index | 77°F (25°C) |
Last update | 16 Aug 6:56 pm EDT |
Extended Forecast for
Central Islip NY
Tonight
Low: 70 °F
Partly Cloudy
Sunday
High: 86 °F
Mostly Sunny
Sunday Night
Low: 66 °F
Chance
ShowersMonday
High: 75 °F
Slight Chance
RainMonday Night
Low: 63 °F
Mostly Cloudy
Tuesday
High: 77 °F
Mostly Sunny
Tuesday Night
Low: 65 °F
Mostly Cloudy
Wednesday
High: 79 °F
Chance
ShowersWednesday Night
Low: 63 °F
Chance
Showers
Detailed Forecast
Tonight
Partly cloudy, with a low around 70. South wind 5 to 7 mph.
Sunday
Mostly sunny, with a high near 86. South wind 6 to 11 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Southwest wind 7 to 9 mph becoming north after midnight. Chance of precipitation is 40%.
Monday
A 20 percent chance of rain before 2pm. Mostly cloudy, with a high near 75. East wind 11 to 15 mph.
Monday Night
Mostly cloudy, with a low around 63. East wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Mostly cloudy, with a low around 65.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 79.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 63.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 83.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Central Islip NY
40.79°N 73.2°W (Elev. 98 ft)
40.79°N 73.2°W (Elev. 98 ft)
4:01 pm EDT Aug 16, 2025
7pm EDT Aug 16, 2025-6pm EDT Aug 23, 2025